On Thu, Feb 27, 2014 at 07:30:26PM +0100, Paolo Bonzini wrote: > Il 04/02/2014 19:41, Marcelo Tosatti ha scritto: > > > >-mem-prealloc asks to preallocate memory residing on -mem-path path. > > > >Currently QEMU exits in case: > > > >- Memory file has been created but allocation via explicit write > >fails. > > > >And it fallbacks to malloc in case: > >- Querying huge page size fails. > >- Lack of sync MMU support. > >- Open fails. > >- mmap fails. > > > >Have the same behaviour for all cases: fail in case -mem-path and > >-mem-prealloc are specified for regions where the requested size is > >suitable for hugepages. > > > >Signed-off-by: Marcelo Tosatti <mtosa...@redhat.com> > > Once we introduce memdev, I believe -mem-path should always exit, > and never fall back to malloc/MAP_ANON.
Agree.
